Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i,j)^2 (A106314).
A204020
Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of min(i,j)^2 (A106314).
Terms
- a(0) =1a(1) =-1a(2) =3a(3) =-5a(4) =1a(5) =15a(6) =-31a(7) =14a(8) =-1a(9) =105a(10) =-247a(11) =157a(12) =-30a(13) =1a(14) =945a(15) =-2433a(16) =1892a(17) =-553a(18) =55a(19) =-1a(20) =10395a(21) =-28653a(22) =25573a(23) =-9620a(24) =1554a(25) =-91a(26) =1a(27) =135135a(28) =-393279a(29) =388810
External references
- oeis: A204020